Internal-combustion engine.



W/ TNE SSE S PATENTED DEC. 10, 1907. ANDERSON.

INTERNAL COMBUSTION ENGINE.

APPLICATION FILED 10110.28, l306.

s SHEETSSHEBT 1.

. WVE'NTOB A TTOHNEYSv No, 873,650. PATENTBD DEO.-10, 1907.

H. S. ANDERSON.

INTERNAL COMBUSTION ENGINE.

APPLICATION FILED 191:0. 25;. 1906.

3.SHEETS-SHEET 2 A TTOI-YNE K8 PATENTED DEC. 10, 1907.

H. s. ANDERSON. INTERNAL OOMBUsTIO'N ENGINE.

APPLICATION FILED DEC. 28, 1906.

3 SHEETS-SHEET 3.

VA V4 6 0 4 0 a a vwz W5 w d I r w w x 7 m. 1 2 I .1 \51 \u D m & a wHQEW %W 5 3 R7 E Q x C 10 9 L I L I 'vV/TNE SSE S STAT :HJALMAR s.ANDERSON, or PITTSBUBG, PENNSYLVANIA.

INTERNAL-C MBUSTION inner k n.

Specification of Letters Patent.

Patented Dec. 10, 1907.

Application filed December 2851906. Serial No. 349.824.

- more particularly to means whereby the enexplosive 'gine cylinder maybe cooled by air delivered to the carburetor and also by means of themixture delivered to the inlet valve. j

The object of the invention is to provide an improved constructionwherein the air delivered to the carburetor is heated by radiation and aricher'mixture thus produced in the carburetor, and this richer mixtureis also heated by radiation from the engine" cylinder before beingignited within said cylinder.

The invention consists in certain features of construction andcombination of parts, all of which will be fully set forth hereinafterand particularly pointed out in the claims.

Reference is to be h'ad'to the accompanying drawings forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures, in which 7 Figure 1 is a sideelevation of the engine cylinder, the outer jacket being shown insection; Fig. 2 is a longitudinal section through the engine cylinderand jacket; Fig. 3 is a transverse section on the line 33 of Fig. 1;Fig. 4 is a transverse section on the line 4= 4 of Fig. 2; and Fig. 5 isa development of the'outer surface of the cylinder.

In my im roved construction I employ a cylinder 10 aving a cylinder head11 either rigidly secured thereto or integral therewith,

and within the head is located the inlet valve 12 and the exhaust valve13. [These valves are supported by valve stems 14 and 15, and may beoperated by means of'cams or in any other suitable manner well known inthe art. Adjacent the inlet valve is located the spark plug 16 forigniting the explosive mixture, and within the cylinder operates anysuitable form of piston 17 and piston rod 18. As these arts do notconstitute an essential portion 0 my invention, and as any suitableconstruction may be emloyed, further description of the specific etailsillustrated is not thought to be necessary.

The outer surface of the cylinder is prov vided with a plurality offlanges so arranged mares.

as to form a plurality of passages intermediate the cylinder and thejacket 19, which latter is provided .with a plurality of flanges orother heat-diffusing elements 20 of any suitable character for radiatingthe heat, and

thus maintaining the cylinder at the desired temperature. surface of thecylinderll], not only serve to form the passages above referred to, butalso serve to support and hold in place the jacket 19. lgigidly securedto the jacket, adjacent the end of the cylinder farthest from the inletand exhaust valves, is secured The flanges upon the outer a conduit 21communicating with the space between the cylinder 10 and the jacket 19and having its outer surface provided with The conduit is sub-divided yapartition 23 to form two separate passages, and its .outer end isprovided with a flange 24 whereby the end of the conduit may beconnected directly returned from said carbureterthrough the otherpassage.

The arrangement of flanges upon the outer surface of the cylinder 10 isclearly illustrated in the development of the outer surface of saidcylinder shown in Fig. 5. The opposite ends of the.cylinder are providedwith flanges 26 of greater thickness and strength than the remainingflanges, and these serve for engagement with the jacket at the ends ofthe latter to support said jacket and hold it in the desired position.One of the flanges 26, namely, the one far-- thest from the inlet andexhaust valves of the engine, is imperforate While the other flange 26is provided with an opening 27 communicating directly with theatmosphere and serving as an inlet for the air which is to be secondflange 29 lying substantially parallel thereto throughout the greaterportion of its rality of circumferential flanges-31 31 31 flanges 32"and 32 lying and 3.1, each of which is connected to the longitudinalflange 29 and all of which exceptthe flange 31 terminate a shortdistance from the' longitudinal flange 28. Intermediate the flanges 31and 31 and intermediate the flanges 31 and 31, are two ar allel theretoand connected to thelofi g'ftn inal flange 28 and spaced a shortdistance from the longitudinal flange 29. The flange 29 terminates atthe flange'31 which lies farthest from the inlet and exhaust valves ofthe engine, and the passage 30 between the flanges 28 and 29 thuscommunicates with a passage 83 lying between the end flange 26 and theadjacent flange 31 WVithin the passage 33 is a short longitudinal flange34 extending from across said passage and adapted to engage with theinner end of the partition 23 of the conduit 21, whereby the twopassages of said conduit communicate with the passage 83 upon differentsides of said flange or partition 34:. As the flange 31 terminates ashort dlstance from the flange 28, a passage {is formed,whereby-communiontion is established between the space below the flange31" and the passage 33 lying between the flange 31 and the flange 32 Thepassage 33 extends from the partition or flange 28 around the cylinderto the partition or flange 29 and communicates with the passage lyingbetween the flanges 32 and 31 which in turn communicates with thepassages lying above each of the next successive pairs of ad acentflanges above referred to; A1133.- cent the flange 31" 1s a flange 32which ter-' -min ates a short distance from the flange 28,

but also terminates a short distance from the flange 29; thisconstruction being necessary to permit the passage of the gas around thebushing 35 through. which is inserted the spark plug" 16. I

Above the flange 32" is a flange 31 in engagement with both of theflanges 28 and 29, and having an opening leading from the passagebetween. theiflanges 32 and 31 to the chamber 36 at the end of thecylinder and adjacent the inlet and outlet valve casings. This chambersub-divided by a circumferential partition 32 lying intermediate thepartition 31 and the terminal flange 26, and having a plurality ofpassages therethrough. The space intermediate the partition 32 and theterminal flange 26 is sub-divided by a longitudinal" partition 37 andagain by the bushing 38 surrounding the exhaust ort 39.

The casing of the inlet valve is'provi ed with an inlet port 40 leadingfrom the valve cham her to the passage intermediate the part1- tions 31and 32 and this last 'mentioned passage communicates with the assage in-,termediate the partition 32 and t e terminal flange 26. I

By means of the artitions, passages and ports above referrer? to, theair may freely of the passages in the conduit 21, as indicated by thearrows on Fig. 5., The air becomes charged withthe fuel at the carhu}reter and flows back to the engine through the remaining passage of theconduit 21 and is delivered into the passage 33 upon the o' .air. Thefluid mixture flows a most entirely around the cylinder after flowinginto the passage 33 and travels almost entirely around the cylinder atsecond time. It then 32* and 31 and so on back and forth around thecylinder until it reaches the inlet valve 40 and. is admitted to thecylinder through the inlet valve 12, followingthe path also indicated onFig. 5 by means of the arrows. It will thus be noted that theatmospheric air around the same before being delivered to thecarbureter. tain heat fronrthe cylinderwall, and this heat is in turnpartially radiated to the outside atmosphere .by means of the flanges20. More of the heat within this air is radiated While said air isflowing through the conduit 21, but when the air arrives at thecarburetor it is still in. a somewhat heated condition. By deliveringthe air to the carbureter in a somewhat heated condition, the gasoleneor other fuel is much more readily eva orated and afar richer mixture isobtaine The vaporizing of the fuel serves to further reduce thetemperature of the air, and the air thus cooled by radiation andvaporization is then circulated back and forth around the latter and toheat the fuel to such a temperature that the most advantageous resultsmay be secured. explosive mixture is circulated not 'only around theouter surface of the cylinder, but also in contact with the endsthereof, and the proper working condition.

It is evident that any number of artitions or flanges may be provided anthe passages arranged in any suitable manner within the scope of theappended claims, as I struction illustrated and described.

Having thus described my. invention, 1 claim as new and desire to secureby Letters Patent: 1

1. An. internal combustion engine, including a cylinder, a carbureter,and two conduits, both of said conduits encircling said cylinder andexposed to the heating action thereof,

flow through the passages 30 and 33 to ,one

posite side thereof to the inlet a's'sage of t e i passes lengthwise ofthe cylinder andonce flows tothepassage intermediate the flanges" Thisserves to abstract cercylinder of the engine to thorou hly cool the Theincoming air and also the cylinder is cooled and maintained in the donot wish to be limited to the specific 'c'on and oneof said conduitshaving the inlet end thereof in communication with a suitable source ofair supply and the outlet end connected to the carbureter, and the otherof said conduits having the inlet end thereof connected to saidcarbureter'and the outlet end thereof connected to the interior of thecylinder.

2. An internal combustion engine, including a cylinder, a jacketsurrounding the same and forming therewith two conduits, andacarbureter, one of said conduits serving to deliver uncarbureted air tosaid carbureter and the other conduit serving todeliver carbureted airfrom the carbureter to the interior of the cylinder.

3. An internal combustion engine, comprising a cylinder having aplurality of radial flanges, a jacket surrounding said cylinder and inengagement with said flanges, said flanges being so disposed as to formwith the cylinder and jacket two independent passages, means forestablishing communication between both of said passages and acarbureter, means for establishing communication between one of saidpassagesand the interior of the engine cylinder, and means forestablishing communication between the other of 'said'passages and theoutside atmosphere.

4. An internal combustion engine, comprising a cylinder, a jacketsurrounding the. same and spaced therefrom, a plurality of partitionsintermediate said cylinder and said jacket and forming a plurality ofindependent passages, and a conduit connected tween the cylinder andjacket, one of the passages of the jacket and one of the passages of theconduit serving for the'delivery of uncarbureted air to thecarbureter,and one of the passages ofeach serving for the delivering of thecarbureted air to the cylinder.

5. An internal combustion engine, com- ,prising a cylinder, meanscoeperating theremeans for connecting one end of both of said municatingwith the interior of the cylinder. In testimony whereof I have signed myname to this specification. in the presence of two subscribin Witnesses.A i I H ALMAR S. ANDERSON. l/Vitnes'ses:

. H. GRAHAM,

W MQGAREY.

to said acket and having separate passa es. connecting to thecorresponding passages ev with to form two independent passages, and 1passages to a carbureter, theopposite end 01- and theother end of theother passage com-

